diff --git a/src/wallet/feebumper.cpp b/src/wallet/feebumper.cpp index 9bfcab54a..5234a6971 100644 --- a/src/wallet/feebumper.cpp +++ b/src/wallet/feebumper.cpp @@ -65,16 +65,39 @@ static feebumper::Result PreconditionChecks(const CWallet* wallet, const CWallet errors.push_back("Transaction has been mined, or is conflicted with a mined transaction"); return feebumper::Result::WALLET_ERROR; } + + if (!SignalsOptInRBF(*wtx.tx)) { + errors.push_back("Transaction is not BIP 125 replaceable"); + return feebumper::Result::WALLET_ERROR; + } + + if (wtx.mapValue.count("replaced_by_txid")) { + errors.push_back(strprintf("Cannot bump transaction %s which was already bumped by transaction %s", wtx.GetHash().ToString(), wtx.mapValue.at("replaced_by_txid"))); + return feebumper::Result::WALLET_ERROR; + } + + // check that original tx consists entirely of our inputs + // if not, we can't bump the fee, because the wallet has no way of knowing the value of the other inputs (thus the fee) + if (!wallet->IsAllFromMe(*wtx.tx, ISMINE_SPENDABLE)) { + errors.push_back("Transaction contains inputs that don't belong to this wallet"); + return feebumper::Result::WALLET_ERROR; + } + + return feebumper::Result::OK; } namespace feebumper { -bool TransactionCanBeBumped(CWallet* wallet, const uint256& txid) +bool TransactionCanBeBumped(const CWallet* wallet, const uint256& txid) { LOCK2(cs_main, wallet->cs_wallet); const CWalletTx* wtx = wallet->GetWalletTx(txid); - return wtx && SignalsOptInRBF(*wtx->tx) && !wtx->mapValue.count("replaced_by_txid"); + if (wtx == nullptr) return false; + + std::vector errors_dummy; + feebumper::Result res = PreconditionChecks(wallet, *wtx, errors_dummy); + return res == feebumper::Result::OK; } Result CreateTransaction(const CWallet* wallet, const uint256& txid, const CCoinControl& coin_control, CAmount total_fee, std::vector& errors, @@ -94,23 +117,6 @@ Result CreateTransaction(const CWallet* wallet, const uint256& txid, const CCoin return result; } - if (!SignalsOptInRBF(*wtx.tx)) { - errors.push_back("Transaction is not BIP 125 replaceable"); - return Result::WALLET_ERROR; - } - - if (wtx.mapValue.count("replaced_by_txid")) { - errors.push_back(strprintf("Cannot bump transaction %s which was already bumped by transaction %s", txid.ToString(), wtx.mapValue.at("replaced_by_txid"))); - return Result::WALLET_ERROR; - } - - // check that original tx consists entirely of our inputs - // if not, we can't bump the fee, because the wallet has no way of knowing the value of the other inputs (thus the fee) - if (!wallet->IsAllFromMe(*wtx.tx, ISMINE_SPENDABLE)) { - errors.push_back("Transaction contains inputs that don't belong to this wallet"); - return Result::WALLET_ERROR; - } - // figure out which output was change // if there was no change output or multiple change outputs, fail int nOutput = -1; @@ -228,6 +234,7 @@ Result CreateTransaction(const CWallet* wallet, const uint256& txid, const CCoin } } + return Result::OK; } diff --git a/src/wallet/feebumper.h b/src/wallet/feebumper.h index 8eec30440..7e36a9766 100644 --- a/src/wallet/feebumper.h +++ b/src/wallet/feebumper.h @@ -26,7 +26,7 @@ enum class Result }; //! Return whether transaction can be bumped. -bool TransactionCanBeBumped(CWallet* wallet, const uint256& txid); +bool TransactionCanBeBumped(const CWallet* wallet, const uint256& txid); //! Create bumpfee transaction. Result CreateTransaction(const CWallet* wallet,